Hey everyone,

I just discovered a connector that is not connected to anything. And with all the work done on this engine recently (some by me, some by a shop) I'm wondering if something got neglected in re-assembly. I can't find / recall any other sensor in this vicinity. The attached pic shows the connector. It's on a short cable in the rear of the engine near the alternator. You can see the rear bank valve cover and back of the alternator in the pic.

Any idea what this connector is supposed to connect to?? Any thoughts appreciated. Thanks.

 

here are a few pic from my monte...i hope this helps!

 

it appears that its an 02 sensor!

 

haha man i had that same mystery connector on my previous 01 SS,
never found out what it was for
hopefully somebody here will know, im curious to find out

 

nope mine had the same one, and it wasnt the O2 sensor lol :p

 

If it isn't your o2 sensor plug, then it's just the extra plug that isn't used by all 3800s. GM recycled the harness from all the cars it seems :P

 

well crap...lol

they just towed the monte to fix the BCM so no more digging for me...

 

Definitely not the O2 sensor. Just installed a new one yesterday. That's when I discovered this mystery connector.

Just came back from the shop that helped me with some work about a week ago. They think it's never been hooked up to anything. That's what I was hoping. Seems to make sense as there is nothing nearby that it could connect to.

Thanks for all the replies. Appreciate the help!

Oh, and sorry to hear that your Monte just got towed to the shop, 03Monte. Hope it all works out.

 

Picking up from 12 years ago, I just now discovered this mystery connector attached to the pigtail of the wiring to the alternator and assumed it was an extra and came here for confirmation....thx